package com.itheima.test1;

import java.util.HashMap;
import java.util.LinkedHashMap;

/**
 * @Author:gy
 * @Date: 2025/09/06 9:56
 * @Description:
 */
public class Demo1 {
    public static void main(String[] args) {
        HashMap<String, String> sh = new HashMap<>();
        sh.put("蔡","唱跳");
    }
}
